package com.censtar.criminalintent;

import android.os.Bundle;
import android.support.annotation.LayoutRes;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;

public abstract class SingleFragmentActivity extends AppCompatActivity {
   protected abstract Fragment createFragment();
   @LayoutRes
   protected int getLayoutResId(){
       return R.layout.activity_fragment;
   }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(getLayoutResId());

        FragmentManager fm = getSupportFragmentManager();
        Fragment fragment = fm.findFragmentById(R.id.fragment_container);
        if(fragment == null){
            fragment = createFragment();
            fm.beginTransaction()
                    .add(R.id.fragment_container,fragment)
                    .commit();
        }
    }
}
